NEW AUTOLITE AR3932 RACING SPARK PLUGS — PACK OF FOUR

The Autolite AR3932 is a high-performance racing spark plug designed for compatible competition engines and aftermarket cylinder-head applications.

Its standard-tip, gasket-seat design uses a 14 mm thread and 3/4-inch reach. The non-resistor construction is intended for racing ignition systems where this plug specification is required.

Product Highlights:

• Authentic Autolite racing product

• Model: AR3932

• Four spark plugs included

• High-performance racing design

• Non-resistor construction

• 14 mm thread diameter

• M14 × 1.25 thread pitch

• 3/4-inch thread reach

• 5/8-inch hex

• Gasket seat

• Standard non-projected tip

• Approx. 0.025-inch pre-gap

• Nickel-plated shell

• Brand new with box

Application Note:

The AR3932 is commonly selected according to the racing cylinder head, compression ratio, fuel, ignition system, engine load, and required heat range.

It should not be listed as universally fitting a specific street vehicle without verified application data.

Box Note:

The original four-piece retail box is included and may show minor cosmetic wear from shipping, storage, or handling. The plugs remain new and unused.